Top roller for spinning- machinery



UNITED sTATEs PATENT oEETcE.

CHARLES GREEN, 0F SALEM, MASSACHUSETTS.

TOP ROLLER FOR SPINNING MACHINERY.

Specification of Letters Patent No. 21,333, dated August 31, 1858.

To all 'whom 'it may concern.'

Be it known that I, CHARLES GREEN, of Salem, in the county of Essex andState of Massachusetts, have invented a new and useful Improvement inSpinning Machinery; and I do hereby declare that the same is fullydescribed and represented in the following specication and theaccompanying drawings.

My invention or improvement has reference to the top'rollers of thesystem of drawing rollers of a spinning machine used for drawing andtwisting cotton or other fibrous substance, and the nature of the saidinvention consists in the application of each top roller to its spindlein such manner as to enable the roller to rotate and rock or tilt on thespindle, and for the purpose of attaining` one or more new and usefulresults as hereinafter mentioned. By such an ap' plication of the rollerto its spindle, impor tant advantages are gained. In the first place,the friction induced by the rotary motion of the roller is very muchdiminished in comparison to what it is when the roller is made fast tothe spindle and the latter rotates with the roller. In the second place,the roller can accommodate itself to the bottom roller or the yarn whilepassing between the two. In the third place the improvement effects agreat saving in lubricating material in comparison to what is requiredwhen the roller and spindle rotate together. In the fourth place, eachroller turns independently of that one next to it and on the samespindle, and thus is not governed in its movement in any manner by therotary motions of the latter. In the lift-h place, the liability of theroller to pack with or wind up the yarn is greatly reduced, and in oaseof the occurrence of such, the removal of the yarn from the roller ismore easily effected, than when the roller is fastened to the spindle.

Of the said drawings, Figure 1, is a side View of two top rollers andtheir spindle.

Fig. 2, is a longitudinal section of the saine. Fig. 3, is a side viewof the spindle, while Fig. 4, is a transverse section of one of therollers. A

In such drawings, AA A, are the two top rollers, and, B, their` spindle.

That part, a, of the spindle on which atop roller is placed is formedlonger in diameter in its middle part than it is at its extremities andit tapers each way from its middle as shown in Figs 2, and, 3.

The top roller is constructed tubular or with a cylindrical bore orbearing,I to receive the part, ce, of the spindle. In making the toproller, it may consist of a short metallic tube, c, covered with acoating, cl, of leather or other suitable material or materials, thediameter of the bore of the tube corresponding with or being a littlegreater than the greatest diameter of the part, a, of the spindle onwhich the roller is to work.

Vhen the spinning machine is in operation, the top roller will revolveon the spindle, which will be stationary, and besides revolving on thespindle the top roller will be at liberty to rock or tip either way in alongitudinal direction. By being supported only at the middle of thepart, a, the bearing surface is very small and the bore of the rollerbecomes not only a convenient reservoir or place for retaining oil forthe lubrication of the rubbing surfaces, but a means of protecting therubbing surfaces from dirt or iibrous filaments.

I claimy The application of a top roller of a spinning machine to itsspindle so as to be capable of rocking and rotating thereonsubstantially in manner and for the purpose hereinbefore specified.

In testimony whereof I have hereunto set my signature.

CHAS. GREEN. Vitnesses:

THos. M. 'SAUNDERs JAMES KIMBALL.

